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Jams and Marmalade
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Since there are also different methods of packaging and the source and quality of ingredients vary, no single standard process will meet all requirements. The following are some of the different products that can be processed. |
Product Type |
Definition |
|---|---|
|
Fruit curds and cheeses |
Based on citrus juices with egg and/or starch thickening to give an opaque product |
|
Low-calorie and dietetic jam |
Usually no added sucrose. Sweetening may be with sorbital, artificial sweeteners or (for some dietetic jam) partly with fructose |
|
Marmalades |
Similar to jam but with citrus fruit and peel |
|
Biscuit jam |
Very viscous products with high total solids |
|
Jellies |
Clear strained products which may have fruit particles in suspension |
For very small scale production, the use of open APV steam jacketed pans with atmospheric boiling and manual addition of ingredients is adequate. Most manufacturers, however, require more sophisticated processes to improve both product quality and ensure recipe consistency. SPX has supplied APV equipment and engineered jam plant for a wide variety of products.
Capabilities
SPX has a number of proven process solutions which cover many of the requirements of the modern jam producer:
- Particulate jam products requiring evaporation
- Particulate jam products not requiring evaporation
- Non-particulate jam products
However, there are many variations on these basic processes and specialized systems can be designed to meet individual requirements. Click here for more information.

Benefits
- SPX has supplied APV equipment and engineered jam plant for a wide variety of products and is able to provide proven solutions to suit specific product ranges with demanding production patterns.
- SPX's continuous system for non-particulate jams operates with minimum energy requirements and high retention of volatile flavor components, producing high-quality product at least cost.
- When sulphited fruit pulp is used, an APV de-sulphiting column can be installed to remove most of the sulphur dioxide, without damaging valuable flavor compounds. This produces higher quality jam without the use of expensive flavorings.
- Rapid heating and cooling, using APV scraped-surface heat exchangers produces whole fruit jams with minimal thermal damage and loss of volatiles.
- All main plant items are specifically designed for in-place cleaning to meet today's high hygiene standards.
- A continuous plate evaporator can reduce steam consumption to approximately half that required for an equivalent batch processing plant, thus reducing operating costs considerably.

